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A comment on I made an ls alternative for my personal use.

Re:I made an ls alternative for my personal use by vunderba on Sunday November 24, 2024 @02:04PM (#42229666)
Sounds like a fun project. However, from the readme:

Efficient file listing: Optimized for speed, even in large directories

What exactly is it doing differently to optimize for speed? Isn't it just using the regular fs lib?

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Re:I made an ls alternative for my personal use by jeffbee on Sunday November 24, 2024 @02:26PM (#42229796)
On my system it uses twice as much CPU as plain old ls in a directory with just 13k files. To recursively list a directory with 500k leaf files, lla needs > 10x as much CPU. Apparently it is both slower and with higher complexity.
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Re:I made an ls alternative for my personal use by inquisitive-me on Sunday November 24, 2024 @02:44PM (#42229929)
But it’s written in rust so it’s super fast. Did you take that into account when running your benchmarks? /s
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Re:I made an ls alternative for my personal use by triyanox on Sunday November 24, 2024 @06:53PM (#42231724)
Will definitely prioritize optimization in the next releases. Planning to benchmark against ls on various systems and file counts to get this properly sorted.
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Re:I made an ls alternative for my personal use by niek_pas on Monday November 25, 2024 @10:08AM (#42236883)
Not trying to “gotcha” you, but I would imagine that 10x the CPU of ls is still very little, or am I wrong?
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Re:I made an ls alternative for my personal use by jeffbee on Monday November 25, 2024 @10:21AM (#42237004)
In the case of the 500k tree, `lla` needs 2.5 seconds, so it's pretty substantial.
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Re:I made an ls alternative for my personal use by echoangle on Monday November 25, 2024 @05:36PM (#42240848)
Is listing a lot of files really CPU-limited? Isn’t the problem IO speed?
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Re:I made an ls alternative for my personal use by matheusmoreira on Monday November 25, 2024 @07:44PM (#42241575)
What exactly makes ls faster?
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Re:I made an ls alternative for my personal use by triyanox on Saturday November 30, 2024 @07:25PM (#42285114)
On the latest release the it can list a tree of 100 in depth with over 100k files in less than 100ms and if cached 40ms
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